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Evidence of a Doubly Ionized Native Donor in CdTe
Author(s) -
Whelan R. C.,
Shaw D.
Publication year - 1968
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19680290115
Subject(s) - ionization , cadmium telluride photovoltaics , conductance , ionization energy , diffusion , chemistry , lattice (music) , atomic physics , range (aeronautics) , ion , electrical resistivity and conductivity , materials science , thermodynamics , condensed matter physics , nanotechnology , physics , organic chemistry , quantum mechanics , acoustics , composite material
The electrical conductance of CdTe has been measured in the temperature range 490 to 950 °C as a function of the ambient partial pressure of Cd, p Cd . The conductance varied as p Cd 1/3and was interpreted in terms of a doubly ionized native donor whose associated ionization energy was estimated to be ≦ 0.24 eV. The incorporation energy of the doubly ionized donor into the CdTe lattice was (1.65 ± 0.15) eV. Defect equilibrium occurred by a bulk diffusion process possessing different characteristics to radiotracer self‐diffusion processes.